# File: AntiAway.pm
# Author: pragma_
#
# Purpose: Kicks people that visibly auto-away with ACTIONs or nick-changes

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

package Plugins::AntiAway;
use parent 'Plugins::Plugin';

use warnings; use strict;
use feature 'unicode_strings';

sub initialize {
  my ($self, %conf) = @_;
  $self->{pbot}->{registry}->add_default('text', 'antiaway', 'bad_nicks',   $conf{bad_nicks}   // '([[:punct:]](afk|brb|bbl|away|sleep|z+|work|gone|study|out|home|busy|off)[[:punct:]]*$|.+\[.*\]$)');
  $self->{pbot}->{registry}->add_default('text', 'antiaway', 'bad_actions', $conf{bad_actions} // '^/me (is (away|gone)|.*auto.?away)');
  $self->{pbot}->{registry}->add_default('text', 'antiaway', 'kick_msg',    'http://sackheads.org/~bnaylor/spew/away_msgs.html');

  $self->{pbot}->{event_dispatcher}->register_handler('irc.nick',    sub { $self->on_nickchange(@_) });
  $self->{pbot}->{event_dispatcher}->register_handler('irc.caction', sub { $self->on_action(@_) });
}

sub unload {
  my ($self) = @_;
  $self->{pbot}->{event_dispatcher}->remove_handler('irc.nick');
  $self->{pbot}->{event_dispatcher}->remove_handler('irc.caction');
}

sub on_nickchange {
  my ($self, $event_type, $event) = @_;
  my ($nick, $user, $host, $newnick) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->args);

  my $bad_nicks = $self->{pbot}->{registry}->get_value('antiaway', 'bad_nicks');
  if ($newnick =~ m/$bad_nicks/i) {
    my $kick_msg = $self->{pbot}->{registry}->get_value('antiaway', 'kick_msg');
    my $channels = $self->{pbot}->{nicklist}->get_channels($newnick);
    foreach my $chan (@$channels) {
      next if not exists $self->{pbot}->{channels}->{channels}->{hash}->{$chan} or not $self->{pbot}->{channels}->{channels}->{hash}->{$chan}->{chanop};
      $self->{pbot}->{logger}->log("$newnick matches bad away nick regex, kicking from $chan\n");
      $self->{pbot}->{chanops}->add_op_command($chan, "kick $chan $newnick $kick_msg");
      $self->{pbot}->{chanops}->gain_ops($chan);
    }
  }
  return 0;
}

sub on_action {
  my ($self, $event_type, $event) = @_;
  my ($nick, $user, $host, $msg, $channel) = ($event->{event}->nick, $event->{event}->user, $event->{event}->host, $event->{event}->{args}[0], $event->{event}->{to}[0]);

  return 0 if $channel !~ /^#/;
  return 0 if not $self->{pbot}->{chanops}->can_gain_ops($channel);

  my $bad_actions = $self->{pbot}->{registry}->get_value('antiaway', 'bad_actions');
  if ($msg =~ m/$bad_actions/i) {
    $self->{pbot}->{logger}->log("$nick $msg matches bad away actions regex, kicking...\n");
    my $kick_msg = $self->{pbot}->{registry}->get_value('antiaway', 'kick_msg');
    $self->{pbot}->{chanops}->add_op_command($channel, "kick $channel $nick $kick_msg");
    $self->{pbot}->{chanops}->gain_ops($channel);
  }
  return 0;
}

1;